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Client Data of Major Banks Exposed in Vendor Hack

Client Data of Major Banks Exposed in Vendor Hack

First seen 23 Nov 2025, 12:26 UTC • •

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ThreatCluster AI
ThreatCluster •March 12, 2026 at 13:27 UTC

A hack of a technology vendor has potentially compromised client data for JPMorgan Chase, Citi, Morgan Stanley, and other major banks. The incident has been contained, and the vendor, SitusAMC, reported that no encrypting malware was involved.

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